-(ns #^{:doc "Package for computing retracts from formal contexts."}
+(ns
+    #^{:doc "Package for computing retracts from formal contexts."}
   conexp.contrib.retracts
   (:use [conexp :only (concepts,
 		       objects, object-derivation,

	    :when (retract? context ret)]
	ret))))

nil
		       compatible-subcontexts,
		       restrict-concept,
		       make-context,
		       set-of)])
  (:use [clojure.contrib.pprint :only (cl-format)]))

(defn- homomorphism-by-csc
  "Returns the homomorphisms obtained by resticting every concept to the
